Wow! Good job, Mark. On the side I had asked Bud Romak his preference and
he said "Duco".
On Sat, Jun 23, 2012 at 7:05 AM, Mark F1diddler <f1diddler_at_yahoo.com> wrote:
> **
>
>
>
> Pretty sure if there were much difference in weight/strength between these
> two, it would show up in our building. However, just read an online article
> by a Freeflighter which claimed "Ambroid is 20% lighter than Duco." The
> method was to dry out equal _volumes_ of liquid cement from the tubes, then
> compare weights of resulting dried samples. Problem there is such doesn't
> account for viscosity differences. Someone should compare the strength of
> two _solid_ samples of equal weight. The stronger should be the winner for
> our purposes, since that means less glue per strength. Ok, I'll do it. I
> suppose tensile strength should be what's to be measured, for our purposes.
> Anyone have a good idea for a valid test, applying, say .5 gram of solid
> glue (redissolved) to some kind of joint? Don't think it should be with
> balsa, but something less porous.
>
> FWIW, 1 oz Duco liquid right out of tube weighed 27.26 grams. Thoroughly
> dried, same sample weighed 5.54 gram. So, 20.3% solids. Will do the same
> for a tube of Ambroid, but I believe viscosity can change according to
> marketing forces.
>
> No trouble, I can still use all the above glue on projects.
> Mark B
>
>
>
Received on Sun Jun 24 2012 - 09:09:46 CEST
This archive was generated by Yannick on Sat Dec 14 2019 - 19:13:47 CET